StarTech.com ST124UTPE Manual

UTP Cat5 Extender & Splitter
4/8-port Ethernet VGA Signal Extender & Splitter
ST124UTPE
ST128UTPE Instruction Guide

FCC COMPLIANCE STATEMENT
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

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Table of Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Connecting Your VGA Extender and Splitter . . . . . . . . . . . . . . . . . . . 3
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Warranty Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

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IInnttrroodduuccttiioonn
Thank you for purchasing a StarTech.com VGA Cat5 Splitter/Extender. Combined with
one or more StarTech.com remote receivers (STUTPRXL - sold separately), you can
display the image from a computer or other VGA image source on multiple remote
displays at distances of up to 1000 feet (300 meters). With no drivers or software to
install, this VGA Extender offers simple setup and crystal-clear images at resolutions of
up to 1280 x 1024 pixels.
Features
• Display the image from a local computer on multiple remote displays at distances up to
1000ft (300m)
• Hardware-only solution: no drivers or software to install or configure
• Uses industry-standard Category 5 Ethernet cable
• Supports resolutions of up to 1280 x 1024 at 60Hz refresh (depends on distance of
remote displays)
Before You Begin
System Requirements
• 1 x STUTPRXL Remote Receiver module for each remote display (not provided)
• 1 x HD15 male-to-male VGA cable
• Category 5 Ethernet cable terminated at each end with RJ-45 connectors, one for
each remote display (if using surface cabling)
OR
Category 5 Ethernet cable terminated at each end in a wall-mounted outlet, with a
standard Category 5 patch cable, two for each remote display (if using premises
cabling)
Do you need additional cables? Visit www.startech.com to find what you need and the
name of your local StarTech.com dealer.
NOTE: The total length of RJ45 cables supporting each remote display cannot exceed
1000 feet (300 meters) from the VGA Extender unit to the remote.

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Contents
• 1 x Local VGA Extender/Splitter
• 1 x VGA cable (HD-15 male-to-male)
• 1 x Power adapter DC 12V 600mA
• 1 x User Manual
IInnssttaallllaattiioonn
The VGA Extender is composed of two different units: the ST124UTPE(4-
port)/ST128UTPE(8-port) Extender and Splitter, along with a STUTPRXL Remote
Receiver (available seperately). The VGA Extender takes the output from a VGA source
(usually a computer) and transmits it to one or more Remote Receivers over Category 5
Ethernet cable. Each remote display (monitor, projector) connects to a Remote Receiver
using a standard VGA connection and displays the image from the local computer on the
remote display.
Preparing Your Site
Before you can install the VGA Extender, you need to prepare your site.
1. Determine where the local computer will be located and set up the computer.
2. Determine where the remote displays will be located, situate them appropriately.
3. If you are using surface cabling, ensure you have enough Category 5 Ethernet cabling
to connect the VGA Extender to each remote location, and that each end is terminated
with an RJ-45 connector.
OR
If you are using premises cabling, ensure that the Category 5 Ethernet Cabling
between the VGA Extender and each remote display location has been properly
terminated in a wall outlet in each location and there is a patch cable long enough to
connect the Remote Receiver and the VGA Extender to their respective outlets.

4
Installing the VGA Extender and Splitter (local)
1. Place the VGA Extender (ST128UTPE/ST124UTPE) near the local computer.
2. Switch off the computer.
3. Connect the data cable from the local computer display to the OUTPUT port
on the VGA Extender.
4. Connect the HD15 male-to-male VGA cable (provided) to the INPUT port on the VGA
Extender.
5. Connect the other end of the HD15 male-to-male VGA cable to the VGA Out
connection on the local computer (originally occupied by the local computer display).
6. Connect the Ethernet cable connection for each Remote Receiver to an RJ-45
port on the VGA Extender (marked Cat. 5).
7. Connect the AC Adapter (provided with local unit) into an appropriate power
source and plug the opposite end into the DC/12V port on the VGA Extender.
Step 3
(See Below)
Step 4
(See Below)
Step 7
(See Below)
Back
Front
Step 6 (See Below)

5
Installing the Remote Receiver Module
1. Connect the Remote Receiver to the Ethernet cable connection from the VGA
Extender, marked Cat. 5.
2. Connect the data cable from the display to the opposite side of the receiver,
marked VGA OUT.
3. Repeat steps 1and 2at each remote display location.
4. Connect the AC Adapter (provided with remote unit) into an appropriate power
source and plug the opposite end into the DC/12V port on the Remote Receiver.
CAUTION: The Category 5 Ethernet cables that connect the VGA Extender and Remote
Receivers carry electrical current and should not be plugged in to other devices, as they
may cause damage. We strongly recommend marking the Ethernet cables you are using
with the VGA Extender at every location for easy identification.
Completing the Installation
1: Switch on the local computer and display.
2: Switch on the display at each remote location.
3: Verify that every remote display/monitor is properly displaying the image from the local
computer connected to the VGA Extender.
TTrroouubblleesshhoooottiinngg
The following section provides troubleshooting help. The solutions are arranged in the
order they should be attempted in most situations. If you continue to have difficulties
after attempting the solutions in this section, please contact StarTech.com technical
support.
One or more of the remote displays is black or displays a “no signal” message:
This means that the Remote Receiver is not receiving a signal from the VGA Extender.
(1) Check that the display is receiving power and that all cables are connected.
(2) Check that the display is connected to the Remote Receiver.
(3) Try an alternate RJ-45 connector on the VGA Extender.
(4) If you have a computer connected to the VIDEO IN port on the Remote Receiver,
switch it off and/or disconnect it.
One or more remote displays does not display an image when the local computer
wakes up from Standby Mode:
Power the remote displays OFF and ON again.
One or more remote displays is distorted, noisy, or displays a “signal error” or
similar error message.
The screen resolution and/or refresh rate on the local computer may be set too high for
the capabilities of the remote displays. to remedy this:

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(1) Adjust the local computer to a lower resolution and refresh rate until all
remote displays show an image.
(2) Gradually increase the resolution and refresh rate on the local computer
until one (or more) remote displays ceases to display an image.
(3) Return the resolution and refresh rate on the local computer to the highest
resolution and refresh rate setting that displayed an image on all remote
displays.
NOTE: If you are still unable to see an image on a remote display after trying the above
solutions, it is recommended that you verify the Category 5 Ethernet cable installation to
the remote display before calling technical support. This can be done using a standard
cable tester. If you do not have a cable tester, contact a local computer service or wiring
professional.
SSppeecciiffiiccaattiioonnss
Resolution Up to 1280 x 1024 @ 60Hz
(can be affected by overall cable length)
Sync TTL Compatible
Horizontal/Vertical Sync Polarity Positive/Negative
System Cable Maximum
Distance
Category 5 Shielded FTP Cable 1000 feet
(300 meters)
Connectors
ST124UTPE: 4 x Cat. 5
1 x HD-15 VGA (in)
1 x HD-15 VGA (out)
ST128UTPE: 8 x Cat. 5 (out)
1 x HD-15 VGA (in)
1 x HD-15 VGA (out)
Power External Adapter: 12V DC 600mA
Dimensions (L x W x H) mm: ST124UTPE: 130 x 83.5 x 29.5
ST128UTPE: 200 x 83.5 x 29.5
Weight ST124UTPE: 247g
ST128UTPE: 345g

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TTeecchhnniiccaallSSuuppppoorrtt
StarTech.com’s lifetime technical support is an integral part of our commitment to provide
industry-leading solutions. If you ever need help with your product, visit
www.startech.com/support and access our comprehensive selection of online tools,
documentation, and downloads.
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This product is backed by a one-year warranty. In addition, StarTech.com warrants its
products against defects in materials and workmanship for the periods noted, following
the initial date of purchase. During this period, the products may be returned for repair, or
replacement with equivalent products at our discretion. The warranty covers parts and
labor costs only. StarTech.com does not warrant its products from defects or damages
arising from misuse, abuse, alteration, or normal wear and tear.
Limitation of Liability
In no event shall the liability of StarTech.com Ltd. and StarTech.com USA LLP (or their
officers, directors, employees or agents) for any damages (whether direct or indirect,
special, punitive, incidental, consequential, or otherwise), loss of profits, loss of business,
or any pecuniary loss, arising out of or related to the use of the product exceed the
actual price paid for the product.
Some states do not allow the exclusion or limitation of incidental or consequential
damages. If such laws apply, the limitations or exclusions contained in this statement
may not apply to you.

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StarTech.com is “The Professionals’ Source for Hard-to-Find Computer Parts”.
Since 1985, we have been providing IT professionals with the quality products
they need to complete their solutions. We offer an unmatched selection of
computer parts, cables, server management solutions and A/V products and
serve a worldwide market through our locations in the United States, Canada, the
United Kingdom and Taiwan.
Visit www.startech.com for complete information about all our products and to
access exclusive interactive tools such as the Parts Finder and the KVM
Reference Guide. StarTech.com makes it easy to complete almost any IT
solution. Find out for yourself why our products lead the industry in performance,
support, and value.
Revised: 10 February 2006